The prowfish (Zaprora silenus) is a subtropical species of a perch-like fish found in the northern Pacific Ocean. The range of the prowfish is from the Aleutian Islands, Alaska to Kamchatka, Russia, from Navarin Canyon in the Bering Sea to Hokkaido, Japan and Monterey, California. The preferred habitat of the prowish is rocky bottom at a maximum of 2,200 feet in depth where they spend most of...

The Warty Comb Jelly (Mnemiopsis leidyi), also known as the Sea Walnut, is a species of tentaculate ctenophore originally native to the western Atlantic coastal waters. Three species of Mnemiopsis have been named, but are now generally categorized as different ecological forms of the species leidyi. This species tolerates a wide range of salinity (2 to 38 psu), temperature (36 to 90 degrees F),...

Bathykorus bouilloni is a species of jellyfish found in the Arctic Ocean at depths of 2,600 feet below sea level and extending to roughly 8,200 feet below sea level. Its range extends around Greenland and the north of Canada.
This jellyfish is a recently discovered specimen that was first described in 2010. It is the only species within its genus, Bathykorus. Its genus name is derived from...

The Blue Jellyfish, (Cyanea lamarckii), also known as the Bluefire Jellyfish, is a species of jellyfish found in the western Pacific around Japan. It is also found in the pelagic zone off the west coast of Scotland, the North Sea and the Irish Sea. It is often commonly found among the more common Lion’s Mane Jellyfish.
This jellyfish has a blue or yellow tone and grows to an average 4 to 8...

The Purple-striped Jelly (Chrysaora colorata), also known as the Mauve Stinger, is a species of jellyfish found primarily off the coast of California in Monterey Bay. This species has been studied closely by scientists hoping to gain a better understanding about the creature’s eating habits.
The bell (body) of the jellyfish is up to 27.6 inches in diameter, with a radial pattern of...

The Compass Jellyfish, (Chrysaora hysoscella), is a fairly common species of jellyfish that is found in the coastal waters around the United Kingdom and Turkey. It has a diameter of up to 12 inches. It has 24 tentacles arranged in eight groups of three. It is typically colored yellowish white, with some brown.

The Japanese Sea Nettle, (Chrysaora melanaster), also known as the Northern Sea Nettle or Brown Jellyfish, is a species of jellyfish native to the waters of the eastern Pacific Ocean. It is often called the Pacific Sea Nettle, however, this name is also used for Chrysaora fuscescens. The name “Japanese Sea Nettle” is also used for Chrysaora pacifica.
This species’ medusa (umbrella or...

Fungia scruposa is a species of mushroom coral that lives a single individual rather than as a colony. It starts out life as a small disk attached to dead coral or rock, but by the time it reaches about 1 inch in diameter, it becomes detached. The adult has a single polyp that reaches up to 10 inches in diameter.
This is the first species of coral that has been observed eating jellyfish....

The Moon Jellyfish*, (Aurelia labiata), is a species of jellyfish in the Ulmaridae family. Its range is mostly confined to the northern Pacific Ocean, stretching from the west coast of California to the eastern coast of Japan.
This particular species is larger than its relative, Aurelia aurita, but will often swarm in large numbers with them. This species are fed upon by other species of...

The White-spotted jellyfish is also known as the Australian spotted jellyfish (Phyllorhiza punctata). The jellyfish feeds primarily on assorted snail species and thrives in the southwestern Pacific.
The bell of the White-spotted jellyfish averages 17-19 inches in diameter but there had been a maximum reported size of 24 inches. However, on Sunset Beach in North Carolina in October, 2007, a...

A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.